61100010505051 has 12 divisors (see below), whose sum is σ = 75256435509048. Its totient is φ = 49290764776512.

The previous prime is 61100010504989. The next prime is 61100010505073. The reversal of 61100010505051 is 15050501000116.

It is a de Polignac number, because none of the positive numbers 2^k-61100010505051 is a prime.

It is a super-2 number, since 2×61100010505051² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61100010505151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36674675341 + ... + 36674677006.

It is an arithmetic number, because the mean of its divisors is an integer number (6271369625754).

Almost surely, 2^{61100010505051} is an apocalyptic number.

61100010505051 is a deficient number, since it is larger than the sum of its proper divisors (14156425003997).

61100010505051 is a wasteful number, since it uses less digits than its factorization.

61100010505051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73349352378 (or 73349352371 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 25.

Adding to 61100010505051 its reverse (15050501000116), we get a palindrome (76150511505167).

The spelling of 61100010505051 in words is "sixty-one trillion, one hundred billion, ten million, five hundred five thousand, fifty-one".